539993 has 2 divisors, whose sum is σ = 539994. Its totient is φ = 539992.

The previous prime is 539947. The next prime is 540041. The reversal of 539993 is 399935.

539993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 537289 + 2704 = 733^2 + 52^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-539993 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (539093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269996 + 269997.

It is an arithmetic number, because the mean of its divisors is an integer number (269997).

2⁵³⁹⁹⁹³ is an apocalyptic number.

It is an amenable number.

539993 is a deficient number, since it is larger than the sum of its proper divisors (1).

539993 is an equidigital number, since it uses as much as digits as its factorization.

539993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32805, while the sum is 38.

The square root of 539993 is about 734.8421599228. The cubic root of 539993 is about 81.4321766274.

The spelling of 539993 in words is "five hundred thirty-nine thousand, nine hundred ninety-three".